EmiSense Technologies
EmiSense Technologies develops electrostatic particulate matter sensors (PMTrac®) and cloud-connected emissions telemetry (EmTrac®) for direct measurement of ultrafine particulates from combustion engines, serving data center operators, hospitals, and automotive Tier-1 suppliers.
- Company typePrivate
- Founded2009
- HeadquartersLadera Ranch, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What EmiSense Technologies does
EmiSense Technologies, LLC is a privately held sensor company founded in 2009 and headquartered in Ladera Ranch, California. The company develops electrostatic particulate matter (ePM) sensing technology under the PMTrac® brand, which directly measures ultrafine particulate matter (PM) and particulate number (PN) from combustion engines. Unlike traditional delta-P measurement approaches, EmiSense's ePM technology offers faster response times and superior sensitivity, with sensors priced at less than 1% of generator value. The company also offers EmTrac®, a cloud-connected emissions telemetry system for remote monitoring of distributed sensor installations, and has combined ePM with NOx and other sensors for multi-pollutant monitoring solutions.
EmiSense's technology is protected by a core patent portfolio filed between 2010 and 2012, with subsequent validation for gasoline direct injection (GDI) applications in 2016 and demonstrated superior real-world response time by 2020. The company has historically targeted the automotive OEM market, licensing its ePM/PMTrac® technology portfolio to Continental Automotive in 2014; that relationship ended in 2018 following the Volkswagen diesel emissions scandal fallout and associated regulatory enforcement delays. Since then, EmiSense has operated an S23-generation product (launched 2022) and executed a new global Tier-1 Supplier license agreement in 2024 to re-establish its OEM channel.
The business model combines hardware sensor sales (to data center operators, hospitals, and stationary diesel generator operators), technology licensing royalties (to Tier-1 automotive and industrial suppliers), and emerging cloud-based telemetry subscription revenue. Customer segments include data centers and hospitals (primary verticals for Tier-4 emissions compliance on large diesel backup generators), automotive OEMs and Tier-1 suppliers (for OBD/OBM under LEV-III, China-7, Euro-7, and Tier-5 Off-road regulations), and broader stationary large diesel applications. The company employs 11–50 people and has raised approximately $9.5M across two disclosed funding rounds in 2011 and 2013, with no subsequent raises publicly disclosed.
EmiSense Technologies firmographics
Firmographics- Name
- EmiSense Technologies
- Legal name
- Emisense Technologies, LLC
- Website
- https://emisense.com
- Company type
- Private
- Founded year
- 2009
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- EmiSense Technologies develops electrostatic particulate matter sensors (PMTrac®) and cloud-connected emissions telemetry (EmTrac®) for direct measurement of ultrafine particulates from combustion engines, serving data center operators, hospitals, and automotive Tier-1 suppliers.
- Ownership category
- akta.pro rank
EmiSense Technologies industry classification
Industry- Product category
- Particulate Matter Emissions Sensors
- NAICS
- Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Other Measuring and Controlling Device Manufacturing (334519)
- SIC
- Industrial Instruments For Measurement, Display, And Control (3823), Laboratory Analytical Instruments (3826)
- akta.pro primary industry
- Environmental Sensors (Temperature/Humidity/Gas/Air Quality) (HDAHALAD)
- akta.pro secondary industry
- Automotive ECUs/Control Modules & Embedded Electronics Manufacturing (IMACAJAC)
Keywords
Where EmiSense Technologies is headquartered
LocationHeadquarters
- HQ city
- Ladera Ranch
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
EmiSense Technologies business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Supply Chain, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Sensor Hardware Sales: Sale of physical PMTrac® ePM ultrafine particulate sensors for installation in diesel generators, automotive applications, and other combustion systems.
- Technology Licensing: Licensing of ePM/PMTrac® patent portfolio to Tier-1 suppliers and automotive companies. Previously licensed to Continental Automotive (2014). New global Tier-1 supplier license agreement executed in 2024.
- Cloud Telemetry Services: Cloud-connected emissions telemetry (EmTrac®) for data collection and monitoring from installed sensor networks.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Multi-year contract | Enterprise sensor pricing |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels3 records
EmiSense Technologies product offering
Product offeringCore offering
EmiSense Technologies develops and sells electrostatic PM (ePM) sensors under the PMTrac® brand for the direct measurement of ultrafine particulate matter (Particulate Mass and Particulate Number) from combustion engines, paired with EmTrac® cloud-connected emissions telemetry for remote monitoring. The company also licenses its ePM/PMTrac® patent portfolio to Tier-1 automotive and industrial suppliers, and offers low-cost sensor variants targeting Tier-4 emissions compliance for large stationary diesel generators in data centers and hospitals.
Product overview
EmiSense Technologies offers a portfolio of electrostatic PM/PN sensors (PMTrac®) combined with cloud-connected emissions telemetry (EmTrac®). PMTrac® provides direct measurement of ultrafine particulate matter from combustion engines, while EmTrac® enables cloud connectivity for remote emissions monitoring. The company recently expanded into stationary generator applications with low-cost ePM monitoring solutions for data centers and hospitals, complementing their existing automotive and industrial sensor offerings.
Differentiator
Problem solved
Functional benefit
Brands
- PMTrac: Ultrafine Particulate Matter (ePM) sensors for clean combustion applications
- EmTrac
Products and services
- PMTrac® ePM Ultrafine Particulate Sensors Electrostatic PM (ePM) sensors that provide direct measurement of ultrafine particulate matter (Particulate Mass and Particulate Number) from combustion engines, designed as low-cost, durable units for automotive and stationary engine applications across multiple fuel types (gasoline, diesel, biofuels, natural gas, e-fuels) and engine designs (hybrid, GDI).
- EmTrac® Cloud-Connected Emissions Telemetry Cloud-connected emissions telemetry system that works with PMTrac® sensors to deliver remote monitoring and data transmission capabilities for distributed pollutant monitoring installations.
- Low-Cost ePM Sensors for Stationary Diesel Generators Specialized electrostatic PM sensors designed for large diesel generators in data centers and hospitals, enabling continuous Tier-4 emissions compliance monitoring at less than 1% of generator value, with the option to combine with NOx sensors for multi-pollutant monitoring.
Quantifiable outcome
- Faster response times compared to traditional delta-P approaches
- +3 more outcomes
Companies that use EmiSense Technologies
Customer profileNamed customers4 records
Segments4 records
Ideal customer profiles4 records
EmiSense Technologies technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
EmiSense Technologies partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core and minor.
- Global Tier-1 SuppliercoreA new global Tier-1 Supplier license agreement was executed in 2024, representing a key strategic partnership for embedding ePM technology into automotive and industrial OEM products. This follows the earlier Continental licensing arrangement.
- Continental AutomotiveminorEmisense licensed the ePM/PMTrac® technology portfolio to Continental Automotive in 2014. However, Continental ceased development of the ePM sensor in 2018 due to fallout from the VW diesel emissions scandal and regulatory enforcement challenges. This partnership is historical but significant in the company's IP development trajectory.
Scale indicators4 records
Recent moves6 records
Expansion highlights4 records
EmiSense Technologies competitors and assessment
Company assessmentBroad incumbents
- Sensata Technologies: Sensata is a major sensor incumbent with a broad portfolio of automotive and industrial sensors including emissions and pressure sensors. It competes with EmiSense in the automotive OEM channel and stationary power monitoring, but offers a much wider sensor portfolio beyond particulates.
- Bosch (Robert Bosch GmbH): Bosch is the dominant Tier-1 automotive sensor supplier with deep OEM relationships and full-stack emissions sensing solutions. It competes with EmiSense across diesel and gasoline PM sensing for automotive applications and has substantially greater scale and R&D resources.
- Honeywell International: Honeywell provides emissions monitoring sensors and process analytics for industrial and stationary power applications, overlapping with EmiSense's data center and hospital generator use cases. It is a broader industrial sensing incumbent with much larger scale.
- STMicroelectronics: STMicroelectronics produces automotive-grade MEMS sensors and environmental sensor ICs that compete in the underlying sensing components for emissions monitoring. It serves similar automotive OEMs but at the silicon level rather than finished particulate sensor systems.
- Niterra (formerly NGK Spark Plug): Niterra/NGK is a major supplier of automotive emissions and oxygen sensors to OEMs globally. It competes with EmiSense in automotive emissions sensing and has well-established Tier-1 relationships across the same regulatory frameworks (Euro-7, China-7).
Direct peers
- Continental Automotive: Continental previously licensed EmiSense's ePM technology in 2014 and developed an automotive PM sensor until ceasing in 2018. As a Tier-1 with direct OBD/OBM emissions sensing capability, it is the most directly comparable peer in the automotive PM sensor space.
- Amphenol Advanced Sensors: Amphenol Advanced Sensors manufactures environmental and gas sensors, including particulate and air quality sensing products. It is a direct competitor in environmental sensor technology serving similar industrial and automotive customers.
- Figaro Engineering: Figaro Engineering specializes in gas and particulate sensors for automotive, industrial, and indoor air quality applications. It competes with EmiSense in low-cost environmental sensing, particularly for combustion and emissions monitoring use cases.
- TSI Incorporated: TSI manufactures ultrafine particulate matter and aerosol measurement instruments for research, industrial hygiene, and emissions monitoring. It overlaps with EmiSense in direct PM/PN measurement technology and serves some of the same industrial and stationary emissions customers.
Emerging players
- ams-OSRAM (AMS AG): ams-OSRAM develops optical and environmental sensors, including particulate matter sensors for smart home and automotive applications. It is a partial competitor with overlapping technology approaches in some segments but a different primary focus area.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
EmiSense Technologies social profiles
Digital presenceEmiSense Technologies financial estimates
Financial estimateRevenue estimate
Valuation estimate
EmiSense Technologies leadership team
Management profileNumber of profiles
EmiSense Technologies funding detail
Funding detailFunding overview
Funding rounds2 records
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
EmiSense Technologies M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about EmiSense Technologies
What does EmiSense Technologies do?
EmiSense Technologies develops and sells electrostatic PM (ePM) sensors under the PMTrac® brand for the direct measurement of ultrafine particulate matter (Particulate Mass and Particulate Number) from combustion engines, paired with EmTrac® cloud-connected emissions telemetry for remote monitoring. The company also licenses its ePM/PMTrac® patent portfolio to Tier-1 automotive and industrial suppliers, and offers low-cost sensor variants targeting Tier-4 emissions compliance for large stationary diesel generators in data centers and hospitals.
Is EmiSense Technologies a public or private company?
EmiSense Technologies is a private company. It is classified as unknown and is currently operating.
When was EmiSense Technologies founded?
EmiSense Technologies was founded in 2009. It employs 11 to 50 people.
Where is EmiSense Technologies based?
EmiSense Technologies is headquartered in Ladera Ranch, United States, in the North America region.
How does EmiSense Technologies make money?
Three revenue lines are on record. Sensor Hardware Sales are the primary driver. The others are technology Licensing and cloud Telemetry Services.
Who are EmiSense Technologies's main competitors?
Broad incumbents on record are Sensata Technologies, Bosch (Robert Bosch GmbH), Honeywell International, STMicroelectronics and Niterra (formerly NGK Spark Plug). Direct peers are Continental Automotive, Amphenol Advanced Sensors, Figaro Engineering and TSI Incorporated. ams-OSRAM (AMS AG) is listed as an emerging player.
Does EmiSense Technologies have an API?
No public API is recorded for EmiSense Technologies.
What industry is EmiSense Technologies in?
EmiSense Technologies's product category is Particulate Matter Emissions Sensors. Its primary akta.pro industry code is HDAHALAD, Environmental Sensors (Temperature/Humidity/Gas/Air Quality), with a secondary code of IMACAJAC, Automotive ECUs/Control Modules & Embedded Electronics Manufacturing. Its NAICS code is 33451 and its SIC code is 3823.